Balboa M7 58104 Heater replacement 26-58032-K, 15" 4.0kW 230v, for 1807240573, 26-58104-K, C2400-0807-TPS, 55033, 55035, 58031, 58032, 58056, 58064, 58103, 58104, 58106, 58109, 58117, 58120, 58148, 58212, 26-58104-5S-KS, 26-0807-5S-K, 26-0807-5S-KS

Spa Heater replacement 26-58032-K 15" housing with 2 taps and 2 studs, with 240v 4.0kW heating element, no sensors. Replaces Balboa M7 58104 and others that have 2 mounting studs, and 2 sensors. This unit includes the heating element but does not include the sensors, order this one if you need a new heater and already have the 2 M7 sensors.

Fits for 1807240573, 26-58104-K, C2400-0807-TPS, 55033, 55035, 58031, 58032, 58056, 58064, 58103, 58104, 58106, 58109, 58117, 58120, 58148, 58212, 26-58104-5S-KS, 26-0807-5S-K, 26-0807-5S-KS, and others.

Always prevent a new heater or heater element from coming on (turn down the temp setting) until you have run the pump on high several minutes to get all the air out of the piping, BEFORE you even turn up the heat. This prevents 'dry-fire' which will damage any heater. Follow this whenever you drain and fill your spa, change a filter cartridge, etc. Tub owners do not realize when water level drops for any reason, evaporation, people getting out of the spa, etc., when the skimmer sucks in air and the heater is on, you are damaging the heater.

Unit is fully tested and certified for resistance and electrical values multiple times before packaging and shipping. Resistance value is Certified. Insulation value is Certified.

Fits for M7 heaters and others. Also available in 5.5kW and 3kW

Like any flothru spa heater it must never see a lack of flow or air in the system with the heater on, it will 'dry-fire' and burn out and test open for resistance and warranty will not cover open, dry-fire abuse.